Lowered risk of acquiring HIV
reduced chance of unwanted pregnancy
avoidance of any possibility to acquiring an STD
When a factory is running or when driving a car that gives off carbon dioxide and that pollutes the air.
Answer:
It is most likely going to be C. Susan is on a fixed-ratio schedule of reinforcement.
Explanation:
Running - Breathing in polluted air can cause long term damage to lungs.
Swimming - Pollution is one of the many hosts of bacteria, and if someone was to accidentally drink the pool water, it could lead to them being extremely ill.
